The concussive force of the blast could still easily result in hemorrhage and brain damage. But I get your point. And I like making better grenades.
Yep, it's the overpressure of the blast turning your insides to pulp that kills you in an explosion. Fragmentation is mostly for everyone nearby, heh.
The guys who survive grenade explosions miraculously are the ones who got lucky and the force of the blast was diverted up and away by contours in the ground, etc.
A grenade of pretty much any sort point blank should be pretty much a sure thing to anyone not wearing something pretty significant like full mil-spec. And I only don't include that because it's theoretech, so maybe it would be able to resist the concussive forces better. I can't imagine it's fun though, haha.
And yeah, I don't want anyone using a monofilament whip anywhere near me. Even if FanPro pussed out and gimped the rules for them, lol. I liked the old 1e days where all you had to do was
miss, and it was "Oh for frag's sake!"